434919 has 4 divisors (see below), whose sum is σ = 579896. Its totient is φ = 289944.

The previous prime is 434909. The next prime is 434921. The reversal of 434919 is 919434.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 434919 - 2⁹ = 434407 is a prime.

It is a super-2 number, since 2×434919² = 378309073122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

434919 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72484 + ... + 72489.

It is an arithmetic number, because the mean of its divisors is an integer number (144974).

2⁴³⁴⁹¹⁹ is an apocalyptic number.

434919 is a deficient number, since it is larger than the sum of its proper divisors (144977).

434919 is a wasteful number, since it uses less digits than its factorization.

434919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144976.

The product of its digits is 3888, while the sum is 30.

The square root of 434919 is about 659.4838891133. The cubic root of 434919 is about 75.7651452687.

The spelling of 434919 in words is "four hundred thirty-four thousand, nine hundred nineteen".